CardStar vs Prod
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CardStar
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CardStar is a modern flash card app for iPhone, iPad and Apple Silicon Mac that helps you create and organize cards and study card sets your way. Create cards and organize them into separate card sets for different topics, subjects or projects. Use CardStar for learning, revision, languages, facts, reference collections and much more. CardStar also includes powerful quiz features and on-device AI card generation on devices with Apple Intelligence enabled. Generate complete study sets from your own prompt, review the results and save them as a new card set. Whether you want to build your own study system manually or speed things up with AI, CardStar gives you a flexible way to manage and practice your cards across your devices. Key Features: • Create flash cards with title and content • Organize cards into separate card sets • Search across card titles and content • View all card titles in list view with sorting options • Print or export all or selected cards • Study with Quiz Mode (tap to reveal) • Use normal and reverse quiz directions • Mark cards for review in quiz mode • Import cards from plain Text or CSV files • Backup and restore your complete card library • Initial on-device AI card set generation on devices with Apple Intelligence enabled • Available on iPhone, iPad and Apple Silicon Mac CardStar Pro features: • Unlimited AI card sets and AI additions • Multiple Choice quiz mode • Guided AI templates with ready-to-edit prompts • Study stats and quiz history • Weak-card insights and review • Retry Missed Questions • Timed multiple choice • RTF import for rich text study notes
Prod
Quickly capture fleeting thoughts and ideas the moment they arrive. Organize them with simple swipes and receive timely reminders to act on them. Discover your personal ideation patterns to work with your creativity.
- Instant idea capture
- Swipe to organize ideas
- Timely reminders
- Ideation habit tracking
- Focus on active ideas
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Most ideas aren't bad. They're lost. Thinking is a resource. Most people waste most of it by accident — wrong moment, wrong friction, no tool at hand. The gap between having an idea and losing it is where most good thinking goes. Prod exists because that's a waste worth fixing. Capture in seconds Ideas are fleeting. Prod gets out of your way so you can catch a thought the moment it arrives. No setup, no ceremony. Review with a swipe Not every idea needs action right now. Swipe to mark ideas as Active, Paused, or Archived — you can also send an idea to be actioned elsewhere. Stay focused on what matters without losing anything. Timely prods The difference between an idea and something real is usually just timing. Prod handles the timing. Discover your patterns Learn when your mind is sharpest. Prod tracks your ideation habits — your most productive times, your best days, your streaks — so you can work with your creativity, not against it. Prod is not a project manager. It is not a notes app. It is the thing you reach for in the first three seconds of an idea arriving — and the reason that idea still exists tomorrow. Available on iPhone, iPad. Some features require a subscription or in-app purchase. EULA — https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: CardStar at every 9 days against Prod's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CardStar sells 1 one-off in-app purchase and Prod sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
CardStar ships an update every 9 days, Prod every 3 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | CardStar | Prod |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Wolfram Wacker | David Walker |
In-app purchases
CardStar
- CardStar Pro$0.99
Prod
- Prod Pro - Monthly$3.991 Month
- Prod Pro - Annual7 Days trial$29.991 Year
- Prod Pro - Lifetime$79.99







